[GH-ISSUE #261] Faint crackling sound when fan speed at 0%? #231

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opened 2026-02-26 00:32:06 +03:00 by kerem · 2 comments

kerem commented

2026-02-26 00:32:06 +03:00

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Originally created by @kohanyirobert on GitHub (Jun 10, 2017).
Original GitHub issue: https://github.com/hirschmann/nbfc/issues/261

I have an ASUS UX410UA and I'm using nbfc 1.5.3-beta (2e86ddd) with this config.

Everything seems to work. I can rev up and down the fan.

However. If I turn off the fan (0%) I can still hear a very faint crackle from my notebook. The notebook itself shouldn't have any moving parts aside from the fan on the CPU. It only has a CPU, no GPU. It's an Intel Core i5-7200U, Kaby Lake. It has a SanDisk SSD and that's all.

What could be the source of the faint crackle, is this expected? The fan isn't actually stopped just slowed down to a really low speed?

Originally created by @kohanyirobert on GitHub (Jun 10, 2017). Original GitHub issue: https://github.com/hirschmann/nbfc/issues/261 I have an ASUS UX410UA and I'm using nbfc 1.5.3-beta (2e86ddd) with [this config](https://github.com/hirschmann/nbfc/blob/master/Configs/Asus%20Zenbook%20UX410UQ.xml). Everything seems to work. I can rev up and down the fan. However. If I turn off the fan (0%) I can still hear a very faint crackle from my notebook. The notebook itself shouldn't have any moving parts aside from the fan on the CPU. It only has a CPU, no GPU. It's an Intel Core i5-7200U, Kaby Lake. It has a SanDisk SSD and that's all. What could be the source of the faint crackle, is this expected? The fan isn't actually stopped just slowed down to a really low speed?

kerem closed this issue

2026-02-26 00:32:06 +03:00

kerem commented

2026-02-26 00:32:06 +03:00

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@cdarken commented on GitHub (Jun 11, 2017):

I have the same laptop, but with the i7 cpu. The noise is coil whine.

@cdarken commented on GitHub (Jun 11, 2017): I have the same laptop, but with the i7 cpu. The noise is coil whine.

kerem commented

2026-02-26 00:32:06 +03:00

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@kohanyirobert commented on GitHub (Jun 12, 2017):

Hmm, good to know :) Never heard coil whine before because the fans in my computers were so loud :)

@kohanyirobert commented on GitHub (Jun 12, 2017): Hmm, good to know :) Never heard coil whine before because the fans in my computers were so loud :)